[breakmyfootoff]

You'll have to have a way to plug it in to your computer firts. They sell adapters at walmart that you can put the card into and then plug it into a USB port for around 5 bucks. After you have it in your computer open the my computer window where it shows all the available drives. Right click on the sd card and click properties, at the top of the properties window (the window that shows how much free and used space is on the card) click on tools, in the tools, click on "scan". It might not work, but it's about the only other thing I know of that you could try.